http://www.boston.com/bigpicture/2008/08/scenes_from_rio_de_janeiro.html#photo3
Romanticising and beautifying the slums of Rio: artist JR (who was part of the street art exhibition at the Tate Modern) pasted women’s portraits on the outside walls of houses in the Providencia slum in Rio de Janiero. There’s more pictures on the site of the “Women are Heroes” project (Flash, and linking doesn’t work.)